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Finding the Fourth Proportional to 19,011.83, 28,492.83 and 9,131.45

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Solution

The fourth proportional to 19,011.83, 28,492.83 and 9,131.45 is: 13,685.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,011.83 : 28,492.83 = 9,131.45 : x
  2. Step 2: Convert to fraction form
    19,011.83/28,492.83 = 9,131.45/x
  3. Step 3: Cross multiply
    19,011.83x = 28,492.83 × 9,131.45
  4. Step 4: Simplify right side
    19,011.83x = 260,180,710.04
  5. Step 5: Solve for x
    x = 260,180,710.04/19,011.83
  6. Step 6: Final answer
    x = 13,685.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.